Syllabus, Book and Last Week
Data and Metadata
Data Formats
Data Sources
Data Download
NCL, nco and cdo
Next Week
Extended Syllabus PDF
The Book of R - PDF
Course Home Page LINK
Week 2 - Presentation LINK
<my_new_dir>)<my_new_dir> (change your directory)<my_new_file>)<my_new_file>)<my_new_file.sh>)<my_new_file.sh> (bash .sh)Data are things, known or assumed as facts, making the basis of reasoning or calculation.
Metadata is information about data.
Data Types
Data Set
Data Formats
Raster
Gridded
Vector data structures represent specific features on the Earth’s surface, and assign attributes to those features.
Thiessen polygon
It defines an area around a point, where every location is nearer to this point than to all the others (2D).
Rasters are made up of a matrix of pixels (also called cells), each containing a value that represents the conditions for the area covered by that cell.
NWP uses mathematical models of the atmosphere and oceans to predict the weather based on current weather conditions.
Observation
Forecast
Re-Analysis Data
Ensamble Data
The information collected by a primary source.
The process of making predictions of the future based on past and present data.
A scientific method for developing a comprehensive record. Observations and a numerical model are combined objectively.
Instead of making a single forecast, a set (or ensemble) of forecasts. This set of forecasts aims to give an indication of the range of possible future states of the atmosphere.
ASCII (csv, txt)
netCDF
HDF
GRIB
Shapefile
American Standard Code for Information Interchange
ASCII codes represent text in computers and other devices.
Network Common Data Form
A file format for storing multidimensional scientific data (variables) such as temperature, humidity, pressure, wind speed, and direction.
NCAR (National Center for Atmospheric Research)
UCAR (University Corporation for Atmospheric Research)
Hierarchical Data Format
Designed to store and organize large amounts of data.
National Center for Supercomputing Applications, supported by The HDF Group.
GRIdded Binary or General Regularly-distributed Information in Binary form
Data format commonly used in meteorology to store historical and forecast weather data.
World Meteorological Organization
Geospatial vector data format for geographic information system (GIS) software.
It is developed and regulated by Esri.
The Royal Netherlands Meteorological Institute
European Centre for Medium-Range Weather Forecasts
National Centers for Environmental Prediction (NCEP)
The Earth System Grid Federation (ESGF)
Climatic Research Unit-University of East Anglia
Europe daily gridded observational dataset
ssh.itu.edu.tr
Climate Data Operator
2019-06-13: 1.9.7
era5_t2m.nc
cdo yearmonmean era5_t2m.nc era5_t2m_yearmonmean.nc
era5_t2m_yearmonmean.nc
cdo splitmon era5_t2m.nc era5_t2m_splitmon
era5_t2m_splitmon10.nc
cdo sellonlatbox,26,-45,36,42 era5_t2m.nc era5_t2m_TR.nc
era5_t2m_TR.nc
cdo seasmean era5_t2m.nc era5_t2m_seasmean.nc
era5_t2m_seasmean.nc
netCDF Operator
2019 Jul 01: 4.8.1
ncdiff era5_t2m_splitmon03.nc era5_t2m_splitmon04.nc era5_t2m_splitmon0304_ncdiff.nc
era5_t2m_splitmon0304_ncdiff.nc
NCAR (National Center for Atmospheric Research) Command Language